TURBINE-TYPE FLOWMETER

• Main Authors: MURAKAMI TAKEHIRO, SUZUKI KAZUTAKA, TAMURA ITARU
• Format: Patent
• Language: English; Japanese
• Published: 19.09.2019
• Subjects: MEASURING; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; PHYSICS; TESTING

To provide a turbine-type flowmeter capable of suppressing the amount of excessive metering since rotation of a turbine rotor cannot follow an actual flow rate of fluid to be measured.SOLUTION: A turbine-type flowmeter includes: a bypass flow path 20 for connecting an upstream-side part and a downstream-side part of a turbine rotor 14 in a flowing direction of fluid in a main flow path 17; a flowing state detection part 21 for detecting a flowing state of fluid in the bypass flow path 20; and an integrated value correction part C3 for correcting a flow rate integrated value derived by flow rate integral value derivation parts C1, C2 on the basis of a detection value by the flowing state detection part 21.SELECTED DRAWING: Figure 1 【課題】タービンロータの回転が計測対象の流体の実流量に追従できないことによる過計量を抑制できるタービン式流量計を提供する。【解決手段】主流路１７における流体の通流方向でタービンロータ１４の上流側部位と下流側部位とを接続するバイパス流路２０と、当該バイパス流路２０における流体の通流状態を検出する通流状態検出部２１と、流量積算値導出部Ｃ１、Ｃ２にて導出された流量積算値を、通流状態検出部２１による検出結果に基づいて補正する積算値補正部Ｃ３とを備える。【選択図】図１